There is not only no evidence to suggest that ludicrous extremes like the one you posed are anywhere near happening, the evidence (at least if we're analyzing the existing pattern) points in the complete opposite direction.
But this is exactly how things like "Jews just aren't human" get started.
Stop it. This is not only unhelpful, it's pandering to a completely absurd fear.
The pattern is a bright, unmistakable line, and the massive majority of people I see complaining about it are attempting to make an excuse for bad behavior in one way or another - thinking that certain actions shouldn't have any consequences because of this irrational (or is it?) fear that they'll be next.
Sorry, we left that world behind the moment we entered the information age, and trying to haul it back is ludditism at its finest.
Actions have consequences whether or not anyone likes it.
The moment a movement to deny rights from Jews or whatever starts up with any seriousness and with any level of mainstream acceptance, I'll be right there with you asking "WTF?!" - but in the meantime, let's stop trying to compare intolerance of harmful actions to intolerance of someone based on what they are. Tolerating evil makes you at least a little complicit in it.
Not only are they not the same thing, but the motivations in play are lightyears apart.